Uni-directional redundant solenoid valve for brake actuator and system thereof
US12179724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2020 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Aug 4, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electrohydraulic valve system for controlling a braking system of a work machine includes a valve body forming a bore and a fluid channel, and a valve spool disposed within the bore and in fluid communication with the fluid channel. The valve spool includes at least a first land and a second land. An armature is positioned with respect to the valve spool to move the valve spool axially within the bore between a first position and a second position. A spring is disposed within the bore and biases the valve spool to its first position. A first electromagnetic coil and a second electromagnetic coil are operably controlled between an energized state and a de-energized state. The spring biases the valve spool to its first position when at least one of the first and second electromagnetic coil is in its de-energized state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.